fix(cecotec_pumba8x00_kitterbox): use translations and classes

custom_components/tuya_local/devices/cecotec_pumba8x00_litterbox.yaml

@@ -91,8 +91,7 @@ entities:
         type: boolean
         name: sensor
   - entity: switch
-    name: Auto clean
-    icon: "mdi:robot-vacuum"
+    translation_key: auto_clean
     category: diagnostic
     dps:
       - id: 105
@@ -210,7 +209,7 @@ entities:
   - entity: number
     name: Auto clean delay
     category: config
-    icon: "mdi:robot-vacuum"
+    class: duration
     dps:
       - id: 117
         type: integer
@@ -222,7 +221,7 @@ entities:
   - entity: number
     name: Auto clean minimum interval
     category: config
-    icon: "mdi:robot-vacuum"
+    class: duration
     dps:
       - id: 118
         type: integer